Type-writer line-lock mechanism.



M. B. SARGENT. TYPE WRITER LINE LOOK MECHANISM.

APPLICATION FILED APR. 20, 1909.

Patented Feb. 1, 1910.

2 SHEEIS SHEET 1.

M. -B. SARGENT.

TYPE WRITER LINE LOCK MECHANISM.

APPLICATION FILED APR. 20, 1909;

948,147. Patented Feb 1, 1910. I z sung-SHEET 2.

- Q0 3 3% N w O 3 T N in HELP: 9 i O km *1 g y N E m Q J o N D 1 a? g --a 2 N i in l N u n U N g 42 N ffi "msmr. B. sanenn'r, OFi MOMENCE, rumors, assrenoa To nnnason run- .wm'rna com any, or cnrcaeo rnnmors, A com'oaa rron or, Mama TYPE-WRITER LINE-LOCK nncn'amsmj speciflcation 0,! Letters lfate nt. Patented. Feb. 11,1910. i I Application filed' April 20, 1909; S cria1 I I0.'491,029.- a

1.; c it may concern: I

'i uBe itknow'n that 1,.MARSHALL. B. SAR- a forwardly extending or bail'11, which 55 terminates in a hanger 12, which finds'a cone 1 l xGENT, a citizen of the United States, residing l at Momen'ce', in the county of Kankakee and :State of Illinois, have invented certain new pa d useful Improvements in Type-"Writer L1ne-Lock' Mechanism, of which the followis a specification.

. 1 'lhe present invention relates to the ad vjustable margin stops for limiting the normaltravel of the typewriter carriage .m

leither direction, and to the means provided for throwing the margin stops out of engaging position when it is desired to shift the marriage to a positifinbeyond the normal, as the case in certain classes of ,work, In t 1e normal operation of the machine, the{margin stop, in traveling from rightto left, will first actuate the hell, and thereafter engage the key lock-ing mechanfor limiting the movement of the carto the'meansprovided for lifting the marbearing in the'w'ta ing screw l en te r, plate of the earri a'g e, as best "shown in Fig.

Th.mck bar-is adapted to be 11am and 6 0.

therack swung out oftengag'ement with the escapementtdogs by means of fitnupwardly extendingileyerlf)" locatin n wh the carriagei M To the rear t iS located hangers 18,; whichfare from the smooth-shanks 'o" I screws at each-en f' the" shown in "Fig. 3. The arms 6 bar by the movement of a handle "or lever' l 18, similar to the handle-or lever15 and conswa .70 v I was I f btill which connect with the-margm' stop"'bar= lie upon andare adapted to be'lifted-iwith the rack bar when the latter is-"nioved,-'-"and arehrl5 thermoremovable independentlyof'the rack' gin-stops in order to clear these several deviees'individually and successively to permit the'o'perator to regulate the feed of the carriage under special conditions.

ii-Further objects will appear from a detailed description of the invention, which consists in the features of constructmn andcombination of parts hereinafter described and claimed. 2 v lfIiithexdrawings, Figure 1 is a reareelevation of a typewriter, or so much thereof as s L haste dOVWlllll the present invention, showthe framework p'artially broken away to 7 reveal the interior mechanism; Fig.2 a 1ong itudinal sectional elevation of the same; 9 Ei'g. 3 a detail showing the method of hinging the margin stop bar ;7 and Fig.4 a sec-- tional detail of-one of the margin stops.

" The special features forming the subject nected with the bail '17 at; theendof the car--- is located, The marginstop bar lfi-fnrnishes a mountingfor a pair-of margin'stop bIOcks' 19 which ride 'uponfthe-barand are adapted to be held inan desired .positioir'o'f adjustment bymean's of ado'g' "20"which ispivoted within a slot 21 in-the=top of t'he -bloch and. is normally adapted tofengage withwneof the notches of the bare" -The rear 'under' end 22 ofthe dog'is cut away'to afiordfspm gf r the rece tion of a spri-n 23,="\ vhich normally holds t e forward: em? of. 'tliedog' in en gagemenhjbutpermits the 'dogto' be' thrdwnf v out of engagement by a de ressionmf its" rear end. I ne of the *blocfis haisihin' ed thereto wstop' plate'24', 'whic 1851mm ed with ears 25 adapted'tojembr'fae opposite sides of the block,'-and is"-f 1 r-tlie'rgfl'ovideil .7

matter of the present invention are secured at its nonactingend' withaffif "r 61whi'ch+ 4 5 ce-and movable with a carriage 5 having end en ages the outer-face of'the fiik. ur

plates or walls 6, which areconnected' by nis es an abutment Yforhmitin means ofthecarriage frame 7. The method offinounting'sand guiding the carriage forms no"par't, of the present invention and need Bo net be here described. The normal escape "of the carriage is regulated by means of a l rack 8'-which engages with an escapemcnt dog 9. 'The rack is carried by a rack 10 of angle formation provided, at each end,-w ith It'will beseen that the stop on' the left he d side is cast'solidwith the sto block, a d

to one another. v I The margin stop, shown totheleft of to left of the carriage, is adapted to rat I engage the upper end of a. pivoted bell lever,

riage opposite to that at whieh'tli e le'ver'15 80 g' its swin .loc

that the margin stops lie in-a p anecpp it a;

1, which limits'th'enormal-feed'from-ri lit- -2 a r. I 943,147

27, the lower 'end of which is inturned, and

serves as a hammerior 'striking the bell 28'. The stop, in its normal travel, next engages the upper end'of-a pivoted lock lever 29, the 4 lower end of'which-is provided with an offsetdetent 30, which is adapted to be thrown part of the present invention and need not be further referred to.

.To the right of,the locking lever,- in Fig.

i I, whicli would belto the left thereof as regards the front of the; machine, is located a: stop. pin 34,,which affords a few spaces for the travel of ,the carriage beyond the point of engagement ,with the locking lever. The

ifinalstop oflthecarriage is located at one 1 extendin fingerr aqadapted to;engage with a depen inghjl 36 ;OI1,,the, carriage frame.

'endiof the frame-in the form of an upwardly a l stop membersmight be "otherwise arranged. The carriage is carried forward by the tension of, a spring actuated cord or cable 37, of theusual' character.

In the normal operation of the machine,

ithe margin stop blockswill be'adjustedto the" desired'positions on themargin stop-bar,

stop plate on the stopl bloc the upper en after which. the machine will. be operated in'the lisual manner. The de endinghinged the forward feed'of-t e carriage will first engage with and ride over the bell lever, and this movement rai'sesthe striking end of the lever, into position so'that when released it will swing back anddeliver a blow on the be1l. Thereafter, in thenormal operation t me machine, seven forward steps will be taken by the carriage, which brings the'pivoted sto plateinto engagement with of .the locking .lever, ,and

moves the detentinto position t9 engage the shoulder on the end of the operating lever '32,,which prevents-the forward movement thereof and locks the machine. In these circmnstances, if the operator desires to rintfadditional characters, the mar in stop a r can beraiscd by a movement oft e lever 18 snfliciently; to elevate the pivoted stop nausea in position to clear'the end ofthe oeking member, and they writing will then continue until the stopjplate is-brought into engagement withthe stoppin 34.. If furthe! op eration'is desired,t e margin stop ban-nan aain be raised, and the carriage will trave forward until brought to its ultimate stop by contact with the stop finger 35." The'."posit1on of thelever 1 8 is such that tliese' adjustments can be readily made which limits by the operator. In certain operationsof the machine, with which the present invention is not concerned, it is desirable to lift the rack out of engagement with the escapement dogs in order to permit the carriage to be released, and this raising of the rack bar will also serve to lift themargin stop bar in position to clear the various devices with which it normally cont-acts, so that in releasing .the carriage from the escapement dog, it will travel freely without obstruction of any kind. The stop block which limits the movement of the carriage. in the first direction operates in the manner previously described, and can belifted into position to clear the stop pin 3%, r the other devices in the manner previously. set forth. By hinging or pivoting the stop plate in the manner specified, it will easily ride over the stops or other devices on .a backward movement, so that no difficulty will be experienced in returning the carriage to its original position. What I claim as new and desire to secure by Letters Patent is! LIn typewriter lino lock mechanism the combination of acarriage, a margin stop bar secured to the-carriage and adapted to b raised and lowered, a stop block adjustablt on the bar and provided with a stop plat; hinged in 'osition to brin its acting enc' below the lock, devices a apted to beengaged by the depending end of the stop lat when the marg n stop bar is in normal ow ered position and adaptedto be cleared b said plate when said bar is in raised posi tion, and a rack bar movably secured to th carriage in position to lift the margin sto bar out of normal'position with a movemen ofthe rack bar from normal position, sub stantially as described.

2. In typewriter line lock mechanism, th combination of a carriage, a margin sto bar secured to the carriage and adapted t be 'raisedand lowered, a stop block adjust fableon' the bar and provided with a sto plate hinged in osition to bringits actin; end below the b oek, devices adapted to b engaged by the depending end of the sto plate when the margin sto bar is in norm or lowered position an ada ted to b cleared by said plate when said ar is raise out of normal position, a rack bar movabl secured to the carriage in position to-rais the margin stopbar out of normal positio with a movement of the rack bar from n01 mal position, and means for moving th margin stop bar independently of the movr ments of the rack bar, substantially 2 described.

. 3. In a typewriter line lock mechanisn ;the combination of a carriage, aneseapemei the margin stop bar, lever mechanism-for locking the printing type bars when contacted by the stop locks, means for independently moving the margin stop bar out of alinement with said lever mechanism, and means for moving the escapement rack and margin stop bar out of alin'ement with the escapement device and lever mechanism, sub stantially as described. I I I 4. In a typewriter line lock mechanism, the combination of-a carriage, an escapement rack movably securedto the carria e, a margin stop bar rotatably pivoted to t e carriage, a lever for locking the printing stop blocks for contactv type bar mechanism, ing the type locking lever and adjustably secured to the margin stop bar in such a way as to be in alinement with the locking lever when the margin stop bar is in'its normal position, means for independently rotating the margin stop bar. and stop blocks out of alinement with the means for movin of contact with/t for rotating the locking lever, and the escapement.rack out e escapement device and margin stop bar and stop' ing the lockin and normally in alinement with blocks out of alineni'ent with thelocking lever, substantially as described.

5. In a typewriter line lock mechanism, the combination of a carriage, an escapement rack rotatably secured'to the carriage, a rod forlocking the type bars in non-operative position and suitabl connected with a locking hook, a lever mec anism for engaghook, a margin stop bar roto the carriage, a stop block tatably secure adjustably secured to the margm stop bar 1 the locking lever mechanism, independent means for rotating the margin stop bar and the stop block out of alinement with the locking 1ever mechanism, and means for moving the escapement rack out of engagement with the escapement device, and for rotating the margin stop bar and stop block out of-alinement with the locking substantially as described.

Witnesses: v Gno. M. A. Fnnm,

Pmnson W. EARNING.

lever mechanism, 

